/**
 * p90/457: các quy tắc về RETURN VALUE;
 * */
package session2.returntype;

public class Beta extends Alpha {

	/**
	 * Override method from superclass (Alpha) Chi hoat dong tu java 1.5 tro
	 * len, java 1.4 se bao loi. Override trong truong hop nay la duy nhat cho
	 * phep thay doi kieu du lieu cua method ma khong gay ra loi
	 * 
	 * NOTES: Truong hop nay khong phai la overload
	 * */
	Beta doStuff(char c) {
		return new Beta();
	}
}
